Please please please help?

Question

can someone please tell me what advantages their are for the enviroment, for the reduction of CFC's , i know the basic ones so if someone knows a really good point please tell me.

Answer 1

The negative effect of CFC is that it depletes the ozone layer.  The depletion of the ozone layer allows the harmful UV-B rays of the sun to reach our Earth.  An increase in the amount of UV-B rays reaching the earth has negative effects on humans and plants.  For humans those negative effects would include increased cases of melanoma, cataracts, and possible suppression of the proper functioning of the body's immune system and the skin's natural defenses.

Excessive UV-B inhibits the growth processes of almost all green plants. There is concern that ozone depletion may lead to a loss of plant species and reduce global food supply. Any change in the balance of plant species can have serious effects, since all life is interconnected. Plants form the basis of the food web, prevent soil erosion and water loss, and are the primary producers of oxygen and a primary sink (storage site) for carbon dioxide.

Answer 2

The main reason CFC is harmful is because it destroys the ozone. but u prolly knew that. so maybe i should give like a more detailed insight to this answer.

Ozone is O3 while oxygen gas is O2. As CFC rises to the Ozone, the heat from the sun is so intense that CFC is decompose to form Chlorine atoms which will react with the O3(ozone) to form Chlorine oxide and oxygen which meant the breaking down of the ozone layer. This will allow harmful UV rays to reach the Earth's surface and will cause sickness like sunburn, skin cancer, genetic mutations and eye damage.

hope that helped.

Answer 3

Chlorofluorocarbons (CFC) are compounds containing chlorine, fluorine and carbon only, that is they contain no hydrogen. They were formerly used widely in industry, for example as refrigerants, propellants, and cleaning solvents. Their use has been regularly prohibited by the Montreal Protocol, because of effects on the ozone layer (see ozone depletion). They are also powerful greenhouse gases, in terms of carbon dioxide equivalence (over a time period of one hundred years) between 5000 and 8100 per kg. CFCs have half-lives between 50-100 years, so their presence in the atmosphere and reactivity with ozone is long lived. One CFC molecule typically degrades around 10,000 ozone molecules before its removal, but this number can sometimes be in the millions.